Creating a Parameter Template

Function

This API is used to create a parameter template. The following information needs to be configured: template name, description, DB engine version, and parameter values. Before calling this API:

Learn how to authorize and authenticate it.
Obtain the required region and endpoint.

Constraints

This API is only available for cluster TaurusDB instances (dedicated edition).
The name of the custom parameter template is case-sensitive and must be different from the name of an existing or a default parameter template.
The value of parameter_values in the custom parameter template must be within the default value range of the specified database version.

URI

POST /v3/{project_id}/configurations

**Table 1** URI parameter
Parameter	Mandatory	Type	Description
project_id	Yes	String	Definition: Project ID of a tenant in a region. To obtain this value, see Obtaining a Project ID. Constraints: N/A Range: The value contains 32 characters. Only letters and digits are allowed. Default value: N/A

Request Parameters

**Table 2** Request header parameters
Parameter	Mandatory	Type	Description
X-Auth-Token	Yes	String	Definition: User token. To obtain this value, call the IAM API for obtaining a user token. The value of X-Subject-Token in the response header is the token value. Constraints: N/A Range: N/A Default value: N/A
X-Language	No	String	Definition: Request language type. Constraints: N/A Range: en-us zh-cn Default value: en-us

**Table 3** Request body parameters
Parameter	Mandatory	Type	Description
name	Yes	String	Definition: Parameter template name. Constraints: N/A Range: The template name can contain 1 to 64 characters. Only letters (case-sensitive), digits, hyphens (-), underscores (_), and periods (.) are allowed. Default value: N/A
description	No	String	Definition: Parameter template description. Constraints: N/A Range: The description can consist of up to 256 characters. It cannot contain carriage returns or any of the following special characters: !<"='>& Default value: Empty
parameter_values	No	Map<String,String>	Definition: Mapping between parameter names and parameter values. You can specify parameter values based on a default parameter template. Constraints: N/A
datastore	No	DatastoreResult object	Definition: Database object.

**Table 4** DatastoreResult
Parameter	Mandatory	Type	Description
type	Yes	String	Definition: DB engine. Constraints: N/A Range: Only gaussdb-mysql is supported. Default value: N/A
version	Yes	String	Definition: Database version. For details about how to obtain the version, see the name field returned in Querying Version Information About a DB Engine. Constraints: N/A Range: N/A Default value: N/A

Response Parameters

Status code: 200

**Table 5** Response body parameter
Parameter	Type	Description
configurations	ConfigurationSummary2 object	Parameter template information.

**Table 6** ConfigurationSummary2
Parameter	Type	Description
id	String	Definition: Parameter template ID. Range: The value can contain 36 characters, starting with a UUID and ending with pr07. Only letters and digits are allowed.
name	String	Definition: Parameter template name. Range: The value is the same as the parameter template name in the request.
description	String	Definition: Parameter template description. Range: The value is the same as the parameter template description in the request.
datastore	DatastoreResult object	Definition: Database object.
created	String	Definition: Creation time in the "yyyy-MM-ddTHH:mm:ssZ" format. T is the separator between the calendar and the hourly notation of time. Z indicates the time zone offset. Range: N/A
updated	String	Definition: Update time in the "yyyy-MM-ddTHH:mm:ssZ" format. T is the separator between the calendar and the hourly notation of time. Z indicates the time zone offset. Range: N/A

**Table 7** DatastoreResult
Parameter	Type	Description
type	String	Definition: DB engine. Constraints: N/A Range: Only gaussdb-mysql is supported. Default value: N/A
version	String	Definition: Database version. For details about how to obtain the version, see the name field returned in Querying Version Information About a DB Engine. Constraints: N/A Range: N/A Default value: N/A

Status code: 400

**Table 8** Response body parameters
Parameter	Type	Description
error_code	String	Error code.
error_msg	String	Error message.

Status code: 500

**Table 9** Response body parameters
Parameter	Type	Description
error_code	String	Error code.
error_msg	String	Error message.

Example Request

Creating a parameter template (There are up to 10 concurrent connections for the account.)

POST https://{endpoint}/v3/056538411200d4cd2f79c003c7606412/configurations
{
  "name" : "myparameter",
  "description" : "parameter1",
  "datastore" : {
    "type" : "gaussdb-mysql",
    "version" : "8.0"
  },
  "parameter_values" : {
    "max_user_connections" : "10"
  }
}

Example Response

Status code: 200

Success.

{
  "configurations" : {
    "id" : "887ea0d1bb0843c49e8d8e5a09a95652pr07",
    "name" : "myparameter",
    "description" : "parameter1",
    "datastore" : {
      "type" : "gaussdb-mysql",
      "version" : "8.0"
    },
    "created" : "2022-05-15T11:53:34+0000",
    "updated" : "2022-05-15T11:53:34+0000"
  }
}